PowTech PT1302
The PT1302 i s a c ompact, high e fficiency, and low voltage st ep-up DC/DC co nverter with an Ad aptive Current M ode P WM co ntrol l oop. It com prises of an error amplifier, a ramp generator, a PWM comparator, a switch pass el ement an d driv er. It provides stab le an d high ef ficient ope ration o ver a wi de ra nge of l oad currents.| Part No. | PT1302 |
|---|---|
| Datasheet | PT1302 Download |
| Manufacturer |  PowTech |
| Description | High Efficiency Step-up DC/DC Converter |
| Buy | Stock & Price |
GENERAL DESCRIPTION
It o perates in stable wave forms without external co mpensation. It is su itable fo r 1~4 battery cells ap plications to pr ovide up to 800m A o utput current. Th e 500KHz high sw itching rate reduces th e size of e xternal com ponents. B esides, t he 25 μA l ow quiescent c urrent togethe r wit h high ef ficiency maintains lo ng b attery lifetime. Th e ou tput vo ltage is set with two ex ternal resi stors. Bo th internal 2A switch a nd 300mA dri ver f or driving ext ernal power devices (NMOS or NPN) are provided.FEATURES
z z z z z z z Low Qu iescent (Switch-off) Supp ly Current: 25μA High Supp ly Cap ability: Deliver 5V 800mA with lithium cell/ 3.3V 800mA with 2Alkaline Cell Zero Shutdown Mode Supply Current High efficiency: 92% Fixed switching frequency: 500KHz Options for internal or external power switches MSOP-8 and SOT-89-5 packages are available APPLICATION z z z z z LCD Displays Handheld Computers and PDAs Portable instruments Wireless equipment Digital Sti...
